Ore-concentrator.



Pv PICONE. ORE GONCENTRATOR. APPLIOATION FILED MAY 14, 1913.

Patented Oct. 28, I913.

51W HA/VA /ton/E 2 SHEETS-SHEET 1.

win Lewes F. PIGONE.

ORE CONCENTBATOR,

APPLICATION IILIVJD MAY 14, 1913. 1,076,700. Patented 0013.28, 1913.

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wetsuit moons, or romns'ronn, .nmzoun.

OBE-CONCEN TRATOR.

Specification Letters Patent.

Patented Oct.28,1 913;

dpplicntion filed Maylt, 1813. Serial No. 767,612.

To all whom 1' t may concern:

Be it knownthat I, FRANK 'PIGONE, citi" zen of the United States, residing at Tomb-- stone, in the county ofCochise and'State of Arizona, have invented certain new and use-- ful Improvements in ()re-Goncentmtors, of which the followingis a specification, reference being bad to the accompanying draw- IRES.

This invention relates to improvements m ore concentrators and more particularly to cpneumatic ore concentrator "for the treatment of euriter'ous materials.

The invention hasfor one'ofitsiurther objects, the'provisibn of an improved 0on1 struction of riiile concentrating table embod 'ing means for separating the precious in-l into several sizes or grades. ihe invention has for another object, the provision oi e pervious supporting bed for the ore hedy means to force air under pressure upwardly through the pervious bed to can the body to pulsaic, and additional s for transversely reciprocating the he invcntionhas {for still another object to provide it pneumatic or'e concentrator very simple in its construction, may emu' mJsured at small cost and is highly nd ciiicicnt in practical operation.

iiit above and other objects in view, wiii become apparent as the description pncceds, the invention consists in certain constructions, combinations and arrangements of the parts that I shall hereinafter fully describe and claim.

For :1 full understanding of the invention, reference to behind to the following description and accompanying drawings, in which- Figure 1 is a side elevation of an orc concentrator embodying the present invention. 2 is a top plan view thereof; Fig. 3 is an end elevation; Fig. 1 is a fragmentary l ngitudinnl section taken on the line H of Fig. 2.; Fig. Sis a transverse section token '18 of the table,

-iusted positions by means of on the line 5- 5 of Fig, 2,

Referring in detail to the drawings, 5 designates the corner posts or uprights of a supporting frame, and 6 the longitudinal end transverse connecting bars thereof. One pair of the corner uprights of the frame are of greater height than the other and the longitudinally inclined frame bars 7 connect nprights at their upper ends.

Upon these longitudinal bars the p ncentratinig table to be later described in detail 18 mounted.

A bellows 8 is mounted in the machine frame, the side walls of said bellows being attached at their upper edges to the frame A transversely disposed shaft 9 is mounted in suitable bearings 10 provided upon the uprights 5 at one end of the machine. U on this shaft, the spaced "eccentrics'll are secured, and eccentric collars or straps 12 are loosely engaged upon the fixed eccentrics 11.- By adjusting these straps 12 and securing them in their adthe set screws be varied, as'desired.

13, the throw may The outer eccentrics 12' are connected to one or well of the end of the bottom board bellows 8 by means of the rods 14.

15 designates the driven shaft which is mounted upon the frame uprights 5 above the shaft 9. One end of this shaft is provided with a, belt wheel or other means Wherebv the shaft may be driven from an engine or other suitable source of power. Upon said shaft, :1 gear wheel ltiis fixed, and this gear wheel meshes with the pinion 1.7 fixed upon the shaft 9.

My improved ore concentrating table embodies an outer boundary wall or frame 18 which is in the form of an elongated parallelogrnm and to the same, a lattice structure indicated at 19 consisting of cross diagonally extending strips are secured. Upon this open framework or lattice, the pcrvious flexible bottom 20 of the table is secured at its outer edges. This table bottom is made up of a lower layer of wire cloth 21. Upon this wire cloth one or two layers of burlap 22 are arranged. and a! final upper sheet 0 closely woven silk, broadcloth or other suitable material indicated at 23 is secured.

The concentrating table is arranged between and in parallel relation to the upper frame bars 7 and upon the upper surface 0 the pervious bottom of the table, the concentratingriilies 24; are arranged, said i'iffies being secured to the lattice work 19 of the table structure. These concentrating ritfies are disposed in parallel relation transversely of the table and extend obliquely thcreacross. It is to be understood that the open framework or lattice 19- is flush with the upper edges of the boundary walls 18 of the tabie so that the concentrating rifiles extend above the plane of said boundary vwalls. The skimmer-rifles 25 pro disposed ren and worthless materials.

at right angles to the concentrating riliies and between the same. These skimmer riilles consist of short cleats which are screwed or otherwise secured the lattice work 19. At sf-their upper ends, the skimmer ritlies enga e closely with the concentrating riliies '24 wh1 e I the lower ends ofthe skimmer rillles are spaced from the contiguous concentrating ritlles 24. These skimmer ritlies in conjunction with the concentrating riflics form what is in eifeco a plurality of rectangular ore receiving pockets on the upper surface of the table. By spacing the lower ends of the rilties 25 from the ritlies 24, a passage-Way is provided from one pocket to the other transversely across the table. ,Upon one of the upper longitudinal. fi'ame bars 7, a longitudinal shaft 26 is mounted.

I This shaft is provided adjacent to its opposite ends with the double eccentrics indicated at 27 which are similar in construction to the eccentrics l1 and 12 previously described. 'Iothestrap of the outermost eccentric, the -I'0dSjQIYMfIXlS 28-are connected, the other ends 5 of said rods being pivotally connected to one of the sidewalls of the table 18. One endof this shaft is provided with a beveled gear 29 which meshes with the teeth of a similar gear 30secured upon the shaft 9.

From the above description, the construction and operation of. the machine will be readily understood.

The ore is fed to the machine from a hop- .per 31, mounted between the upper ends of one pair'of uprights 5, said hopper delivering the material upon a spreading and di rect-ing' board 32 which is mounted upon the upper surface of the concentrating table at .its upper end. .The ore gravitates down.- wardly upon the flexible pervious bottom of the table and into the several receiving pockets formed by the riflles 24 and 25. The heavier particles of-ore' will constitute the bottom layer of the ore body while the bar- 45 en material being lighter in specific gravity,

will constitute the upper strata thereof. The

skimming rifHes 25 as clearly shown in Figs;

4 and 5 extend above the upper edges of; the

riflies 24. The particles of ore are caught by the riflies 24 and directed toward one side of i the machine where they are discharged into suitable receptacles. The height of the ritlles 24 gradually decreases from the upper to' the lower ends of the table, and the rifiles 56 25 correspondingly decrease in hei ht. The

larger particles are discharged rem-the table between the adjacent upper rifiles 24 and as the material descends over the table the liner grades are successively discharged therefrom. Thus the ore is graded at the same time that it is separated from the bar- These barren materials which as before stated, are lighter than the ore are held by the short riflles 25 5 which extend-at right angles to the rifiies 24 and directed thereby over the o posits edge of the concentrating table. YDuring the movement of the ore, the bellows 8 is actuated by'the eccentrics l1 and r0ds 14, to force air upwardly through: the pervious bot- 7o tom of the concentrating table, thus ausing the ore bed to rise and fall o; that the lighter particles will pass ovelp tlie skimming .riiiies 25. simultaneously with-"this pulsating movement of the orejbo" the table is transversely reciprocatedb of the eccentrics 27 on the shaft 26, the movement of the ore transversely table and its discharge 't-herefromis The longitudinal side bars of th ter' boundary wall 18 of the table are p'ro ded with pockets or recesses 33 to receiv e lugs or extensions 34 secured to the longis tudinal bars 7 of the supporting fi-am whereby said table is en ported in positio To the opposite sides oft-heftabiaandth sidebars 7 of the frame strusitiirastrifmiif canvas 35 are attached, saidfifcan'vas being sufiiciently loose to permit of the'movemen of the table. These canvas strips" are pro vided for the purpose of preventing dust and; dirt from ehtering between thetable and it supporting frame and interfering with the, proper operation'of the machine, 7

From the above it will be seen that .I have produced a simply constructed-andv'ery eflicicnt machine for operating upon'all materials of different specific gravities, to 'efiect the separation of thezvaluable minerals from the baser materials andj'simultaneously grading the former.

A machine. embodying'the structural featurcs above described may be constructed at comparatively small cost and is also very durable and reliable operation.

While 1 have shown anddes'cribed the pro .terre'd construction and arrangement ofi'th'e several elements, it will be understood that.

the invention is susce'itibie of considerable modification without e arting from the essential features or sacri cing any of the advantages thcreof.

Havin thus described the invention, what is claime is:

1. In an ore concentrator, a table having a. plurality of parallel transversely disposed riiiles upon its upper surface andhhcond series of ritlies arranged between and extendg .ing at right angles to said first named rifiies,

said latt-er riiiies projectinlg above the 11 per edges of the transverse ri es and each 'aving one end spaced from the contiguous transverserifile, and means for reciprocating said table. 1 7

2. In an ore concentrator,;a table provided upon its upper surfacejwith a pluralit of parallel transverse obliquely disposed: rililes and a secondlseries of spaced riflles arran ed between'the. transverse riflles and extending at right angles thereto, said latter rifiles pro 18 0;

jecting above the upper edges of the transverse rifiles and each having one end spaced from the contiguous transverse riflle, and means for transversely reciprocating said table.

3. In an ore concentrating machine, a supporting frame, a table mounted for trans verse mo ement in said frame, said table hav ing a pervious bottom, a plurality of trans versely disposed parallel ritlles arranged thereon, a second series of ohliquelv disposed riflles arranged between the transverse rifi'les and each having one end spaced from the contiguous transverse rillle, said latter rifiles g n-ejecting above the upper edges of the transverse rifiles, and both sets of rifiles gradually decreasing in height from one end to the other of the table, means for forcing air upwardly through the pervious bottom of the table to cause the ore body thereon to pulsate, and means for simultaneously transvex-sel reciprm'ating the table.

In testimony whereof I hereunto affix my signature in he presence of tWo witnesses.

FRANK PICON E.

\Vitnesses F. N. WoLco'rT, BARNEY Annmlvo. 

